<template>
  <div class="count">
    <h2>当前求和为：{{countStore.sum}}</h2>
    <h3>欢迎来到：{{countStore.school}}，坐落于：{{countStore.address}}</h3>
    <select v-model.number="n">
      <option value="1">1</option>
      <option value="2">2</option>
      <option value="3">3</option>
    </select>
    <button @click="add">加</button>
    <button @click="minus">减</button>
  </div>
</template>

<script setup lang="ts" name="Count">
  import {ref,reactive} from 'vue'
  //引入useCountStore
  import {useCountStore} from '@/store/count'
  //使用useCountStore，得到一个专门保存count相关的store
  const countStore = useCountStore()

  //数据
  let sum = ref(1) //当前求和
  let n = ref(1) //用户选择的数据

  //方法
  function add() {
    // 第一种修改方式
    // countStore.sum += 1

    //第二种修改方式
    // countStore.$patch({
    //   sum:888,
    //   school:'尚硅谷',
    //   address:'北京'
    // })

    //第三种修改方式
    countStore.increment(n.value)
  }
  function minus() {
    
  }
</script>

<style scoped>
  .count {
    background-color: skyblue;
    padding: 10px;
    border-radius: 10px;
    box-shadow: 0 0 10px;
  }
  select,button {
    margin: 0 5px;
    height: 25px;
  }
</style>